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Crownpak cr 1

Manufactured by Daicel
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Sourced in Japan

CROWNPAK CR-I (-) is a high-performance liquid chromatography (HPLC) column designed for the separation and analysis of chiral compounds. The column utilizes a crown ether-based chiral stationary phase to achieve effective enantioseparation of a wide range of racemic mixtures.

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Lab products found in correlation

Dgu 20a3r degassing unit, by Shimadzu (1 mentions) Cbm 20a communications bus module, by Shimadzu (1 mentions) Cto 20ac column oven, by Shimadzu (1 mentions) Lc solution, by Shimadzu (1 mentions) Lc 20ad liquid chromatograph, by Shimadzu (1 mentions) Spd m20a diode array detector, by Shimadzu (1 mentions)

2 protocols using crownpak cr 1

1

CROWNPAK CR-I Chiral Separation Analysis

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The analysis on a CROWNPAK CR-I was performed under the following conditions (except Figure 4):
Column: CROWNPAK CR-I (-) (Daicel Corporation) Size: 150 × 3 mm ID
Eluent A: 20 mM HClO4 in 70:30 (v/v) mixture of H2O and ACN
Eluent B: 20 mM HClO4 in 10:90 (v/v) mixture of H2O and ACN
Eluent C: 100/100/4/1 (v/v/v/v) mixture of n-hexane, ethanol, water, and trifluoroacetic acid
Flow rate: 0.25 mL/min., Temperature: 30 °C, and Detection: UV 254 nm under all conditions.
V0 was determined with formamide as the marker to be 0.809 mL.
Ohnishi A., Shibata T., Imase T., Shinkura S, & Nagai K. (2021). Achiral Molecular Recognition of Substituted Aniline Position Isomers by Crown Ether Type Chiral Stationary Phase. Molecules, 26(2), 493.
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2

HPLC Analysis of Chiral Compounds

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Chromatography was performed using an HPLC consisting of an LC 20AD Liquid Chromatograph, SOL 20AC Auto Sampler, DGU-20A3R Degassing Unit, SPD-M20A Diode Array Detector, CTO-20AC Column Oven, and CBM-20A Communications Bus Module, all purchased from Shimadzu Corporation (Kyoto, Japan), and the data were processed with LCsolution, Shimadzu Corporation. The operating flow rate, UV wavelength, and temperature are described in each table. The sample material was dissolved into the mobile phase at a ca. 1 mg/mL concentration, and 1 μL or 2 μL of the sample solution was injected. CROWNPAK CR-I (-) (150 mm × 3 mm I.D., 5 μm packing) was used as a brand new column from Daicel Corporation (Tokyo, Japan).
Ohnishi A., Shibata T., Imase T., Shinkura S, & Nagai K. (2021). Achiral Molecular Recognition of Substituted Aniline Position Isomers by Crown Ether Type Chiral Stationary Phase. Molecules, 26(2), 493.
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